Results 1 to 10 of about 5,629,756 (206)

Tunneled transhepatic hemodialysis catheter via the right hepatic vein in multilevel central venous occlusion with a permanent pacemaker [PDF]

open access: yesRadiology Case Reports
Exhaustion of central venous access sites in hemodialysis patients represents a complex therapeutic challenge. We report the case of a 68-year-old woman with end-stage renal disease, a permanent pacemaker, and loss of peritoneal dialysis access who ...
Joel A. López-Véliz, MD   +3 more
doaj   +2 more sources

Nanographene-Based van der Waals Organic Framework With Permanent Porosity. [PDF]

open access: yesAngew Chem Int Ed Engl
Unlocking record‐breaking porosity in a supramolecular organic framework (SOF). Through the strategic design of a C3‐symmetric nanographene, a robust supramolecular framework is achieved via exclusively weak van der Waals forces. This metal‐free scaffold reaches a benchmark BET surface area of 1108 m2 g−1 –the highest to date for this class–combining ...
Oró A   +5 more
europepmc   +3 more sources

Thermal expansion of FeWO<sub>4</sub> (ferberite) and FeWO<sub>4</sub>:Fe<sub>2</sub>WO<sub>6</sub> (7:1): a comparative X-ray and neutron diffraction study. [PDF]

open access: yesJ Appl Crystallogr
Temperature‐dependent single‐crystal X‐ray, powder X‐ray and neutron diffraction measurements reveal the thermal expansion behavior of FeWO4 from 2 to 1123 K. Significant differences between natural ferberite and a FeWO4:Fe2WO6 composite highlight the influence of multiphase and microstructural effects on derived thermoelastic parameters.The thermal ...
Fabelo O   +5 more
europepmc   +2 more sources

Generación rayos X – mayoría de edad

open access: yesArbor: Ciencia, Pensamiento y Cultura, 2015
La comunidad científica celebró en 2014 el impacto que la cristalografía ha tenido sobre la ciencia fundamental y aplicada, así como los de descubrimientos relevantes que nos han proporcionado una visión del mundo a escala molecular y nanométrica.
Gavin Connor Fox
doaj   +3 more sources

Mass Density Characterization of Hydrogel-Based Systems Inoculated with Bacterial Strains and Dose-Response Performance of Escherichia coli Inoculation [PDF]

open access: yesJournal of Functional Biomaterials
This study aims to determine the density of two hydrogel-based media, medium with agar-agar and medium with agar-agar and glucose, which are suitable for both irradiation and bacterial growth, considering the presence or absence of Staphylococcus aureus ...
Carolina Salinas Domján   +2 more
doaj   +2 more sources

Development of a Multiple Temperature Sensors Device for the Characterization, Control and Monitoring of Microbiological Incubators [PDF]

open access: yesSensors
An increasing number of projects require the precise knowledge and control of thermal conditions within the study system and their temporal evolution.
Carolina Salinas Domján   +2 more
doaj   +2 more sources

Gonzalo Esguerra Gómez y los Rayos X

open access: yesMedicina, 1996
<p>La Junta Directiva de la Academia Nacional de Medicina, presidida por el Académico Gilberto Rueda Pérez, ha tenido el acierto de organizar esta sesión solemne para conmemorarle centenario del descubrimiento de los Rayos X por el profesor de ...
Adolfo de Francisco Zea
doaj   +1 more source

Radiodiagnóstico Física de los Rayos X – Aparatos

open access: yesMedicina, 1993
<p>La directiva de la Facultad de Medicina, con muy buen criterio, ha querido restablecer en el pensum de estudios el curso de Radiología, que existió en el año de 1928 y desapareció algún tiempo después.
Gonzalo Esguerra G.
doaj   +1 more source

Smart material based on boron crosslinked polymers with potential applications in cancer radiation therapy

open access: yesScientific Reports, 2021
Organoboron compounds have been playing an increasingly important role in analytical chemistry, material science, health applications, and particularly as functional polymers like boron carriers for cancer therapy.
José Vedelago   +6 more
doaj   +1 more source

ANALYTICAL AND MONTE CARLO SIMULATION STUDY OF THE INFLUENCE OFSTRONG MAGNETIC FIELDS ON THE PATH OF ELECTRONS WITH ENERGYTYPICAL OF MRI-LINAC RADIOTHERAPY

open access: yesAnales (Asociación Física Argentina), 2022
Both analytical and numerical methods have proven to be suitable for describing radiation transport and interactions. The standard Boltzmann formalism derived from statistical mechanics requires to be specifically re-formulated to account for the ...
A. Gayol, M. Valente
doaj   +1 more source

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